Everything JukaHub does

Watch

Everything you watch and listen to, with the D-pad you already have.

• TubeYouTube search and trending. A video plays at the resolution you set, B puts it aside without losing your place, and you can save it to Favorites.
• Shorts, podcasts and Live TVVertical videos one after another, a podcast library with subscriptions, and channels from your IPTV playlists.
• Video playerYour own videos from the card, with subtitles.
• MusicOpen any audio file and the player takes its folder: shuffle that visits each track once, repeat, a play-next queue, favourites that survive a restart, 0.75× to 2× speed, a sleep timer, synced .lrc lyrics and a full-screen spectrum. Playback continues while you browse. Music player
• Offline musicStart → Tools → Downloads saves a link as an m4a on the card, with a queue, live progress, pause and resume and per-row retry. Saved tracks play with Wi-Fi off.
• Books and photosAn EPUB and PDF reader, and an image viewer for PNG, JPG, BMP and WebP: Left and Right browse the folder, Up and Down zoom.
• BrowserA text web browser built for the D-pad, with a session that survives a relaunch and a Forget button that clears it. Browser

Play

Your ROM library as a library, plus the things nobody expects a handheld launcher to do.

• Games LibraryEmulators → Games Library browses Roms console by console, shows the box art for each title, and launches it with the emulator that owns its system. Drop a short clip in data/game-snaps and it plays while the focus rests on that game. Games Library
• ContinueEvery launch is recorded, so the Continue card at the top of Home resumes the last game in one press; RetroArch games pick up from their automatic save state. Play time and RetroAchievements progress are tracked per game.
• LAN PlayX on a game hosts it or joins another handheld on the same Wi-Fi with RetroArch netplay, so link-cable titles play without a cable. It passes its settings on the command line, so your RetroArch config is left alone.
• PS4 and PS5 Remote PlayJukaHub's own client: it scans the LAN, pairs with the console's Link Device PIN (a PS5 also needs your PSN account ID once), remembers consoles and quality, and streams through its chiaki-stream helper. Remote Play
• PortMaster portsInstall PortMaster from the Emulators screen and launch the ports it manages without leaving JukaHub. PortMaster
• Smart Pro CompatibilityPer-game community reports, an honest hardware tier when nobody has reported a title yet, one-press boost plans for N64, Dreamcast and PSP, and a manager for several libretro core builds. Compatibility
• Game Profiles and Windows appsWindows games through Box64 and Wine, native binaries and scripts, and basic .exe programs through Wine, with Direct3D through DXVK when it is installed. Windows apps
• Disc helpersTools → Disc helpers fills in the cue sheets and multi-disc playlists that PlayStation and Sega CD rips need, without touching an existing file.

Keep

Progress lives in folders on a removable card. JukaHub treats that seriously.

• Save ManagerSnapshots every emulator save folder (RetroArch, PPSSPP, DraStic, Flycast), restores one after taking a safety snapshot first, prepares the folders for Syncthing and exports a phone resume bundle. Snapshots are plain files with a checksum each, so they work without JukaHub. Save Manager
• RecoverySafe mode on L + R + Start, a recovery card with the previous version and your last good settings, and a low-battery save and suspend. Recovery
• Card and battery healthSD-card health checks and battery health, so a failing card or cell is not a surprise.
• Curation HubAn essentials checklist for a new card, shareable theme and text-size profiles tuned per panel, and compatibility votes for games and PortMaster titles. It works offline. Curation Hub
• Settings that stayYour settings live in jukauser.json and survive every update. Power tools keeps snapshots of it with a diff and rollback.

Connect

The handheld, your phone, your PC and the rest of the house, on the same Wi-Fi.

• Wi-FiA real network picker: scan, join with the on-screen keyboard, reconnect saved networks without retyping the password, disconnect and forget. Wi-Fi
• Watch PartyHost on one handheld and join from the others on the same Wi-Fi with a five-character code. Anyone in the room can queue a link or play, pause and seek for everyone.
• Phone companionScan a QR and your phone types into the focused field, works as a remote, and sends links and files to the handheld. How it works
• Remote CastThe handheld's screen, live in any browser on your Wi-Fi at up to ten frames a second, for up to six viewers. It is off until you turn it on and guarded by a PIN.
• FTP and SFTPDrop games, BIOS files and media from a PC. SFTP is encrypted, both use a password made for each start, and both switch themselves off when nobody uses them. Copy files from a PC
• Smart homeDrive Home Assistant entities, mirror every toggle to MQTT, and see Pi-hole, your router and Tailscale, with a tunnel connect and disconnect. Smart home
• ChatThe community Discord channel on the handheld: read, reply and share links.

Make it yours

Every screen is data, so how it looks is up to you.

• 25 themesFrom Dark, Light and High Contrast to Anime, Cute, Fallout and Matrix.
• Smart WidgetsBattery saver drops to the slowest cadence, stops motion and switches to the OLED theme below 20% until the handheld is charged. Add a time-of-day theme, or start at login (off by default).
• AccessibilityText from 85% to 145%, a high-contrast palette, three colour-blind-safe palettes, a system-wide A/B and X/Y remap and a one-handed chord, all in one panel. Accessibility
• Dock and ambientWhile it charges or sits idle: a large clock, today's weather, what is playing and a slideshow from your Photos folder. Y arms a sleep timer and X blanks the screen while audio keeps playing. Dock and ambient
• The web builderLay out your own screens in the browser, push them to the handheld over Wi-Fi, export jukaconfig.json, or share a design as a single link. Open the builder

Extend

Add to the card without a PC, and always with a way back.

• PatchThe package manager. Packages come from an Ed25519-signed repository and install as journaled transactions with a backup first; history, rollback, and verify and repair are one row away. Packages
• PluginsScripts with a manifest and a documented execution contract. Plugins
• Toolboxrclone, jq, ripgrep, fd, pandoc and age, installed on demand from each project's own releases and run with visible output. The network scanners naabu, httpx and dnsx ask once before their first run. Toolbox
• Power toolsA port scan, ping and traceroute, DNS and Wi-Fi checks, a hex, JSON and log viewer, saved script buttons, rsync and Syncthing checks, and a read/write benchmark.
• ConfigurationEvery screen is jukaconfig.json: elements, bounds, triggers and theme tokens, read by the same player on the handheld and on a PC. Configuration reference

Security

Tools → Security & trust shows all of this live on the device, without a PC.

• Checked updates, signed packagesEvery update is checked against the SHA-256 digest GitHub publishes before it is unpacked, and against an Ed25519 signature when the release carries one. Patch installs only from an Ed25519-signed repository index, with each archive checked against it. HTTPS alone is never treated as proof.
• Encrypted secretsAPI keys and tokens in the config are AES-256-GCM with a fresh nonce per value. Set your own key with JUKAHUB_CRYPTO_KEY: the built-in default is the same on every install, and Security & trust says when it is still in use.
• Downloads from an allowlistHelper tools resolve only from repositories listed in the code, through a size-capped downloader, and run directly, never through a shell.
• Servers you can seeFTP and SFTP start only when you press their row, and the posture view names whatever is listening.
• No telemetry unless you askOne boot and crash ping, off by default, limited to build and device facts. Privacy

The threat model and the honest limits